EP 0059062 B1 19850213 - WATER-SWELLABLE COMPOSITE CAULKING MATERIAL FOR PREVENTING WATER LEAKAGE
Title (en)
WATER-SWELLABLE COMPOSITE CAULKING MATERIAL FOR PREVENTING WATER LEAKAGE
Publication
Application
Priority
JP 2169681 A 19810216
Abstract (en)
[origin: US4382999A] The invention provides a novel water-swellable caulking material which is a composite body of stratified structure composed of at least one rubbery layer swellable in water comprising highly water absorbing resin dispersed in the matrix of a rubber and at least one rubbery layer not swellable in water integrally bonded together, which latter serves to resist the expansion of the former layer when swollen in water in the directions other than the direction perpendicular to the plane of the layers. The inventive caulking material can exhibit unexpectedly excellent water sealing effect with easiness in handling in addition to the rapidity in water absorption by virtue of the structure thereof preventing the expansion of the material in the directions of length and width without decreasing the expansion in the direction of thickness.
IPC 1-7
IPC 8 full level
C09K 3/10 (2006.01); B32B 25/00 (2006.01); B32B 25/04 (2006.01); B32B 25/14 (2006.01); B32B 25/16 (2006.01); B63B 5/06 (2006.01); E04B 1/68 (2006.01)
CPC (source: EP US)
B32B 25/00 (2013.01 - EP US); B32B 25/042 (2013.01 - US); B32B 25/16 (2013.01 - US); B63B 5/065 (2013.01 - EP US); E04B 1/68 (2013.01 - EP US); B32B 2250/03 (2013.01 - US); B32B 2250/40 (2013.01 - US); B32B 2305/72 (2013.01 - US); B32B 2581/00 (2013.01 - US); E04B 2001/6818 (2013.01 - EP US); Y10T 428/31826 (2015.04 - EP US); Y10T 428/31833 (2015.04 - EP US); Y10T 428/31837 (2015.04 - EP US); Y10T 428/31917 (2015.04 - EP US); Y10T 428/31924 (2015.04 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI NL
DOCDB simple family (publication)
EP 0059062 A1 19820901; EP 0059062 B1 19850213; AU 554892 B2 19860904; AU 8564982 A 19840112; CA 1168565 A 19840605; DE 3262246 D1 19850328; JP S57135160 A 19820820; JP S606236 B2 19850216; US 4382999 A 19830510
DOCDB simple family (application)
EP 82300783 A 19820216; AU 8564982 A 19820706; CA 395783 A 19820208; DE 3262246 T 19820216; JP 2169681 A 19810216; US 34494682 A 19820202